Waste trap



Patented Sept. 23, 1924.

res r WASTE TRAP.

Application filed July 15, 1924. Serial No. 726,214.

To all whom z'zf may concern:

Be it known that I, ALBERT S. NEWTON, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Waste Traps, of which the following is a specifica tion.

My invention relates to waste traps and has for its essential objects the effective and speedy resealing of the trap after siphonage, and accessibility to the interior of the trap, together with inexpensiveness of construction.

To the enumerated ends essentially my invention consists in such parts and in such combinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form a part of this specification- Figure 1 is a vertical central section of a Waste trap embodying my invention, and

Figure 2, a transverse section of the same on line 22 of Figure 1.

Like reference characters indicate like parts throughout the views.

My waste trap in the form thereof herein illustrated consists of a casing comprising a substantially cylindrical body portion 5 provided with a circular opening 7 in its top, and a closure member or cover 8 therefor. In this instance the closure comprises a circular plate 9, and a depending flange 10 provided with a thread 11 engaging a thread 12 in the opening 7. Slightly above the bottom 13 of the body is a pipe 14 forum ing a lateral inlet 15. A lateral pipe 17 in the top of the body forms an outlet 18. Intermediate its top and bottom the body 5 is provided with an internal annular flange 20 provided upon its inner edge with an upwardly directed inclined tapering annular lip 21 constituting a trough and partition between an upper chamber 23 and a lower chamber 24, and forming a central communicating passage or opening 25 between the chambers. There are an annular series of perforations 26 in the flange 20. The closure 8 has a central angular boss 27 to accommodate a wrench; and threaded to or integral with the center of the closure is a depending rod or post 30 having upon its lower end a downwardly directed conveXo concave baffle plate 31 vertically concentric with the trough and of greater diameter than the passage 25.

Herein is shown a floor 32 provided with an opening 33 above the trap and covered by a floor plate 34 having a central hole 35 to receive the head 36 of a screw 37 having adjustable connection with the closure member 8 in a threaded cavity 40 in the top of the post 30.

In operation the water passes through the inlet 15, chamber 24, passage 25, chamber 23 and outlet 18, baliled in its course by the plate 31 which precipitates a portion of the water into the trough below where it trickles through the perforations 26 to form or augment the water seal in the chamber 24 after each siphonage action.

I claim 1. In a waste trap, a casing, an inlet in the lower portion of the casing, an outlet in the upper portion of the casing, an annular trough in an intermediate portion of the casing provided with perforations, a vertical depending post attached to the top of the casing, and a downwardly directed bai'fle plate upon the post extending over the trough.

2. In a waste trap, a casing, an inlet near one end of the casing, an outlet near the other end of the casing, an internal annular flange on the casing intermediate the inlet and outlet provided with perforations, an annular lip on the flange bounding a water passage, a post supported in the casing, and a baflie plate on the post spaced from the lip and covering the passage.

3. In a waste trap, a casing comprising a body portion provided with an opening in its top, and a detachable closure in the opening, an inlet in the lower portion of the body, an outlet in the upper portion of the body, an internal annular flange on the body between the inlet and outlet provided with perforations, and an upwardly directed annular lip upon the flange surrounding a central water passage, a depending post upon the closure, a baflle plate upon the post above the lip and vertically concentric therewith and overlapping the flange.

In testimony whereof I have affixed my ALBERT S. NEWTON.

signature. 

